47446421479 has 2 divisors, whose sum is σ = 47446421480. Its totient is φ = 47446421478.

The previous prime is 47446421389. The next prime is 47446421483. The reversal of 47446421479 is 97412464474.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47446421479 - 2¹¹ = 47446419431 is a prime.

It is a super-2 number, since 2×47446421479² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47446221479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23723210739 + 23723210740.

It is an arithmetic number, because the mean of its divisors is an integer number (23723210740).

Almost surely, 2^47446421479 is an apocalyptic number.

47446421479 is a deficient number, since it is larger than the sum of its proper divisors (1).

47446421479 is an equidigital number, since it uses as much as digits as its factorization.

47446421479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5419008, while the sum is 52.

The spelling of 47446421479 in words is "forty-seven billion, four hundred forty-six million, four hundred twenty-one thousand, four hundred seventy-nine".